Hybrid device and person based authorized domain architecture

• US 9,009,308 B2
• Filed: 07/14/2004
• Issued: 04/14/2015
• Est. Priority Date: 07/24/2003
• Status: Active Grant

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Kamperman, Franciscus Lucas Antonius Johannes, Koster, Robert Paul, Schrijen, Geert Jan
• Primary Examiner(s): Keehn, Richard G
• Application Number:
  US10/565,663
• Publication Number:
  US 20060190621A1
• Time in Patent Office: 3,926 Days
• Field of Search: 709/245
• US Class Current: 709/225
• CPC Class Codes: G06F 21/1012 to domains
• CPC Class Codes: G06F 21/31 User authentication
• CPC Class Codes: G06F 2221/2129 Authenticate client device independently of the user
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/00731 involving a digital rights management system for enforcing a usage restriction
• CPC Class Codes: G11B 20/00855 involving a step of exchanging information with a remote server
• CPC Class Codes: H04L 2463/101 applying security measures for digital rights management data processing systems or methods, specially adapted for commerce, e.g. marketing, shopping, billing, auctions or e-commerce G06Q30/00
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/0823 using certificates cryptographic mechanisms or cryptographic arrangements for entity authentication involving certificates H04L9/3263
• CPC Class Codes: H04L 63/10 for controlling access to devices or network resources
• CPC Class Codes: H04L 63/101 Access control lists [ACL]

Abstract

This invention relates to a system and a method of generating an Authorized Domain (AD) by selecting a domain identifier, and binding at least one person (P1, P, PN1), at least one device (D1, D2, . . . , DM), and at least one content item (C1, C2, . . . , CNZ) to the Authorized Domain (AD) given by the domain identifier (Domain ID). Hereby, a number of verified devices (D1, D2, . . . , DM) and a number of verified persons (P1, P2, . . . , PN1) that is authorized to access a content item of the Authorized Domain (100) is obtained. In this way, access to a content item of an authorized domain by a person operating a device is obtained either by verifying that the content item and the person are linked to the same domain or by verifying that the device and the content item are linked to the same domain. Thereby, enhanced flexibility for one or more persons when accessing content in an authorized domain is obtained while security of the content is still maintaining. This is further done in a simple, secure and reliable way.

Claims

1. A method of generating an Authorized Domain (AD) comprises:

selecting a domain identifier (Domain_ID) uniquely identifying the Authorized Domain (AD),

binding at least one person (P1, P2, . . . , PN₁) to the domain identifier (Domain_ID) comprising obtaining or generating a domain users list (DUC) comprising the domain identifier and a unique identifier,

binding at least one device (D1, D2, . . . , DM) to the domain identifier (Domain_ID), and

binding at least one content item (C1, C2, . . . , CN₂) to the Authorized Domain (AD) given by the domain identifier (Domain_ID),

thereby obtaining a number of devices (D1, D2, . . . , DM) and a number of persons (P1, P2, . . . , PN₁) that are authorized to access content items (C1, C2, . . . , CN₂) of said Authorized Domain (AD),

wherein access to the at least one content item (C1, C2, . . . , CN₂) is obtained, via an authorization certificate, by verifying that the at least one content item (C1, C2, . . . , CN₂) and the at least one person (P1, P2, . . . , PN₁) are linked to the same domain identifier (Domain_ID) or by verifying that the at least one device (D1, D2, . . . , DM) and the at least one content item (C1, C2, . . . , CN₂) are linked to the same domain identifier (Domain_ID);

wherein the authorization certificate includes the domain identifier (Domain_ID) in a holder field of the authorization certificate, and

wherein the authorization certificate comprises rights data specifying rules, rights and conditions pertaining to access to certain content items for the at least one person in the domain or for every user in the domain and therefore creates or defines part of the domain.

2. A method according to claim 1, wherein the binding at least one person (P1, P2, . . . , PN₁) to the domain identifier (Domain_ID) comprises:

obtaining or generating a Domain Users List (DUC) comprising the domain identifier (Domain_ID) and a unique identifier (Pers_ID1, Pers_ID2, . . . , Pers_IDN₁) for a person (P1, P2, . . . , PN₁) thereby defining that the person is bound to the Authorized Domain (AD),

and/or in that

the binding at least one device (D1, D2, . . . , DM) to the domain identifier (Domain_ID) comprises;

obtaining or generating a Domain Devices List (DDC) comprising the domain identifier (Domain_ID) and a unique identifier (Dev.ID1, Dev.ID2, . . . , Dev.IDM) for a device (D1, D2, . . . , DM) thereby defining that the device is bound to the Authorized Domain (AD).

3. A method according to claim 2, the method further comprises controlling access to a given content item (C1, C2, . . . , CN₂), being bound to the Authorized Domain (AD) and having a unique content identifier (Cont_ID), by a given device being operated by a given person comprising:

checking if the Domain Devices List (DDC) of the Authorized Domain (AD) comprises an identifier (Dev.ID) of the given device, thereby checking if the given device is bound to the same Authorized Domain (AD) as the content item, and/or

checking if the Domain User List (DUC) of the Authorized Domain (AD) comprises an identifier (Pers_ID) of the given person (P1, P2, . . . , PN₁) thereby checking if the given person is bound to the same Authorized Domain (AD) as the content item,

and allowing access to the given content item (C1, C2, . . . , CN₂) by the given device (D1, D2, . . . , DM) for any person if the given device is bound to the same Authorized Domain (AD) as the content item being accessed, and/or allowing access to the given content item (C1, C2, . . . , CN₂) by any device including the given device for the given person if the given person is bound to the same Authorized Domain (AD) as the content item being accessed.

4. A method according to claim 2, wherein the binding at least one content item (C1, C2, . . . , CN₂) to the Authorized Domain (AD) comprises:

binding a content item (C1, C2, . . . , CN₂) to a User Right (URC1, URC2, . . . URCN₂), where said User Right (URC1, URC2, . . . URCN₂) is bound to a person (P1, P2, . . . , PN₁) which is bound to the Authorized Domain (AD), and/or

binding a content item (C1, C2, . . . , CN₂) to a Device Right (DevRC), where said Device Right (DevRC) is bound to a device (D1, D2, . . . , DM) which is bound to the Authorized Domain (AD), and/or

binding a content item (C1, C2, . . . , CN₂) to a Domain Rights (DRC1, DRC2, . . . DRCN₂), where said Domain Rights (DRC1, DRC2, . . . DRCN₂) is bound to the Authorized Domain (AD).

5. A method according to claim 4, wherein the User Right (URC1, URC2, . . . URCN₂) or the Device Right (DevRC) or the Domain Rights (DRC1, DRC2, . . . DRCN₂) comprises rights data (Rghts Dat) representing which rights exists in relation to the at least one content item (C1, C2, . . . , CN₂) bound to the User Right (URC1, URC2, . . . URCN₂) or the Device Right (DevRC) or the Domain Rights (DRC1, DRC2, . . . DRCN₂).

6. A method according to claim 4, wherein

the Domain Users List (DUC) is implemented as or included in a Domain Users Certificate, and/or

the Domain Devices List (DDC) is implemented as or included in a Domain Devices Certificate, and/or

the User Right (URC1, URC2, . . . , URCN₂) is implemented as or included in a User Right Certificate

the Device Right (DevRC) is implemented as or included in a Device Right Certificate, and/or

the Domain Rights (DRC1, DRC2, . . . , DRCN₂) is implemented as or included in a Domain Rights Certificate.

7. A method according to claim 1, the method further comprises controlling access to a given content item bound to the Authorized Domain (AD) by a given device being operated by a given person, comprising:

checking if the given person is bound to the same Authorized Domain (AD) as the given content item, or

checking if the given device is bound to the same Authorized Domain (AD) as the given content item,

and allowing access for the given person via the given device and/or other devices to the content item if the given person is bound to the same Authorized Domain (AD),

or allowing access for the given person and/or other persons via the given device to the content item if the given device is part of the same Authorized Domain (AD).

8. A method according to claim 7, wherein the binding at least one content item (C1, C2, . . . , CN₂) to the Authorized Domain (AD) comprises:

binding a content item (C1, C2, . . . , CN₂) to a User Right (URC1, URC2, . . . URCN₂), where said User Right (URC1, URC2, . . . URCN₂) is bound to a person (P1, P2, . . . , PN₁) which is bound to the Authorized Domain (AD), and

wherein the controlling access of a given content item further comprises;

checking that the User Right (URC1, URC2, . . . URCN₂) for the given content item specifies that the given person (P1, P2, . . . , PN₁) has a right to access the given content item (C1, C2, . . . , CN₂) and only allowing access to the given content item (C1, C2, . . . , CN₂) in the affirmative.

9. A method according to claim 1, wherein every content item is encrypted and that a content right (CR) is bound to each content item and to a User Right (URC) or a Device Right (DevRC) or a Domain Rights (DRC), and that the content right (CR) of a given content item comprises a decryption key for decrypting the given content item.

10. A non-transitory computer readable medium having stored thereon instructions for causing one or more processing units to execute the method according to claim 1.

11. A system for generating an Authorized Domain (AD), the system comprising:

at least one hardware processor; and

means for obtaining a domain identifier (Domain_ID) uniquely identifying the Authorized Domain (AD),

means for binding at least one person (P1, P2, . . . , PN₁) to the domain identifier (Domain_ID) comprising obtaining or generating a domain users list (DUC) comprising the domain identifier and a unique identifier,

means for binding at least one device (D1, D2, . . . , DM) to the domain identifier (Domain_ID), and

means for binding at least one content item (C1, C2, . . . , CN₂) to the Authorized Domain (AD) given by the domain identifier (Domain_ID),

thereby obtaining a number of devices (D1, D2, . . . , DM) and a number of persons (P1, P2, . . . , PN₁) that is authorized to access content items (C1, C2, . . . , CN₂) of said Authorized Domain (AD),

wherein access to the at least one content item (C1, C2, . . . , CN₂) is obtained, via an authorization certificate, by verifying that the at least one content item (C1, C2, . . . , CN₂) and the at least one person (P1, P2, . . . , PN₁) are linked to the same domain identifier (Domain_ID) or by verifying that the at least one device (D1, D2, . . . , DM) and the at least one content item (C1, C2, . . . , CN₂) are linked to the same domain identifier (Domain_ID);

wherein the authorization certificate includes the domain identifier (Domain_ID) in a holder field of the authorization certificate, and

wherein the authorization certificate comprises rights data specifying rules, rights and conditions pertaining to access to certain content items for the at least one person in the domain or for every user in the domain and therefore creates or defines part of the domain.

12. A system according to claim 11, wherein the means for binding at least one person (P1, P2, . . . , PN₁) to the domain identifier (Domain_ID) is adapted to

obtain or generate a Domain Users List (DUC) comprising the domain identifier (Domain_ID) and a unique identifier (Pers_ID1, Pers_ID2, . . . , Pers_IDN₁) for a person (P1, P2, . . . , PN₁) thereby defining that the person is bound to the Authorized Domain (AD),

and/or in that

the means for binding at least one device (D1, D2, . . . , DM) to the domain identifier (Domain_ID) is adapted to:

obtain or generate a Domain Devices List (DDC) comprising the domain identifier (Domain_ID) and a unique identifier (Dev.ID1, Dev.ID2, . . . Dev.IDM) for a device (D1, D2, . . . , DM) thereby defining that the device is bound to the Authorized Domain (AD).

13. A system according to claim 12, wherein the system further comprises means for controlling access to a given content item (C1, C2, . . . , CN₂), being bound to the Authorized Domain (AD) and having a unique content identifier (Cont_ID), by a given device being operated by a given person, where the means is adapted to:

check if the Domain Devices List (DDC) of the Authorized Domain (AD) comprises an identifier (Dev.ID) of the given device, thereby checking if the given device is bound to the same Authorized Domain (AD) as the content item, and/or

check if the Domain User List (DUC) of the Authorized Domain (AD) comprises an identifier (Pers_ID) of the given person (P1, P2, . . . , PN₁) thereby checking if the given person is bound to the same Authorized Domain (AD) as the content item,

and allow access to the given content item (C1, C2, . . . , CN₂) by the given device (D1, D2, . . . , DM) for any person if the given device is bound to the same Authorized Domain (AD) as the content item being accessed, and/or allow access to the given content item (C1, C2, . . . , CN₂) by any device including the given device for the given person if the given person is bound to the same Authorized Domain (AD) as the content item being accessed.

14. A system according to claim 12, wherein the means for binding at least one content item (C1, C2, . . . , CN₂) to the Authorized Domain (AD) is adapted to:

bind a content item (C1, C2, . . . , CN₂) to a User Right (URC1, URC2, . . . URCN₂), where said User Right (URC1, URC2, . . . URCN₂) is bound to a person (P1, P2, . . . , PN₁) which is bound to the Authorized Domain (AD), and/or

bind a content item (C1, C2, . . . , CN₂) to a Device Right (DevRC), where said Device Right (DevRC) is bound to a device (D1, D2, . . . , DM) which is bound to the Authorized Domain (AD), and/or

bind a content item (C1, C2, . . . , CN₂) to a Domain Rights (DRC1, DRC2, . . . DRCN₂), where said Domain Rights (DRC1, DRC2, . . . DRCN₂) is bound to the Authorized Domain (AD).

15. A system according to claim 14, wherein the User Right (URC1, URC2, . . . URCN₂) or the Device Right (DevRC) or the Domain Rights (DRC) comprises rights data (Rghts Dat) representing which rights exists in relation to the at least one content item (C1, C2, . . . , CN₂) bound to the User Right (URC1, URC2, . . . URCN₂) or the Device Right (DevRC) or the Domain Rights (DRC1, DRC2, . . . DRCN₂).

16. A system according to claim 14, wherein

the Domain Users List (DUC) is implemented as or included in a Domain Users Certificate, and/or

the Domain Devices List (DDC) is implemented as or included in a Domain Devices Certificate, and/or

the User Right (URC1, URC2, . . . , URCN₂) is implemented as or included in a User Right Certificate, and/or

the Device Right (DevRC) is implemented as or included in a Device Right Certificate, and/or

the Domain Rights (DRC1, DRC2, . . . , DRCN₂) is implemented as or included in a Domain Rights Certificate.

17. A system according to claim 11, wherein the system further comprises means for controlling access to a given content item bound to the Authorized Domain (AD) by a given device being operated by a given person, where the means is adapted to:

check if the given person is bound to the same Authorized Domain (AD) as the given content item, or

check if the given device is bound to the same Authorized Domain (AD) as the given content item,

and allow access for the given person via the given device and/or other devices to the content item if the given person is bound to the same Authorized Domain (AD),

or allow access for the given person and/or other persons via the given device to the content item if the given device is part of the same Authorized Domain (AD).

18. A system according to claim 17, wherein the means for binding at least one content item (C1, C2, . . . , CN₂) to the Authorized Domain (AD) is adapted to:

bind a content item (C1, C2, . . . , CN₂) to a User Right (URC1, URC2, . . . URCN₂), where said User Right (URC1, URC2, . . . URCN₂) is bound to a person (P1, P2, . . . , PN₁) which is bound to the Authorized Domain (AD), and

wherein the means for controlling access of a given content item is further adapted to further;

check that the User Right (URC1, URC2, . . . URCN₂) for the given content item specifies that the given person (P1, P2, . . . , PN₁) has a right to access the given content item (C1, C2, . . . , CN₂) and only allowing access to the given content item (C1, C2, . . . , CN₂) in the affirmative.

19. A system according to claim 11, wherein every content item is encrypted and that a content right (CR) is bound to each content item and to a User Right (URC) or a Device Right (DevRC) or a Domain Rights (DRC), and that the content right (CR) of a given content item comprises a decryption key for decrypting the given content item.

20. A method of operating an Authorized Domain (AD), the method comprises:

obtaining a domain identifier (Domain_ID) uniquely identifying the Authorized Domain (AD),

binding an identification of at least one person (P1, P2, . . . , PN1) to the domain identifier (Domain_ID) comprising obtaining or generating a domain users list (DUC) comprising the domain identifier and a unique identifier,

binding an identification of at least one device (D1, D2, . . . , DM) to the domain identifier (Domain_ID), and

binding the identification of at least one content item (C1, C2, . . . , CN2) to the Authorized Domain (AD) given by the domain identifier (Domain_ID),

thereby obtaining a number of devices (D1, D2, . . . , DM) and a number of persons (P1, P2, . . . , PN1) that are authorized to access content items (C1, C2, . . . , CN2) of said Authorized Domain (AD),

controlling access to the at least one content item (C1, C2, . . . , CN2) depending on an authorization certificate, by verifying that the identification of the at least one content item (C1, C2, . . . , CN2) and the identification of the at least one person (P1, P2, . . . , PN1) are linked to the same domain identifier (Domain_ID) or by verifying that the identification of the at least one device (D1, D2, . . . , DM) and the identification of the at least one content item (C1, C2, . . . , CN2) are linked to the same domain identifier (Domain_ID);

wherein the authorization certificate includes the domain identifier (Domain_ID) in a holder field of the authorization certificate, and

wherein the authorization certificate comprises rights data specifying rules, rights and conditions pertaining to access to certain content items for the at least one person in the domain or for every user in the domain and therefore creates or defines part of the Authorized Domain.

21. An Authorized Domain (AD), comprising:

at least one hardware processor; and

means for obtaining a domain identifier (Domain_ID) uniquely identifying the Authorized Domain (AD),

means for binding an identification of at least one person (P1, P2, . . . , PN1) to the domain identifier (Domain_ID) comprising obtaining or generating a domain users list (DUC) comprising the domain identifier and a unique identifier,

means for binding an identification of at least one device (D1, D2, . . . , DM) to the domain identifier (Domain_ID), and

means for binding an identification of at least one content item (C1, C2, . . . , CN2) to the Authorized Domain (AD) given by the domain identifier (Domain_ID),

thereby obtaining a number of devices (D1, D2, . . . , DM) and a number of persons (P1, P2, . . . , PN1) that is authorized to access content items (C1, C2, . . . , CN2) of said Authorized Domain (AD),

means for allowing access to the at least one content item (C1, C2, . . . , CN2) depending on an authorization certificate, by verifying that the identification of the at least one content item (C1, C2, . . . , CN2) and the identification of the at least one person (P1, P2, . . . , PN1) are linked to the same domain identifier (Domain_ID) or by verifying that the identification of the at least one device (D1, D2, . . . , DM) and the identification of the at least one content item (C1, C2, . . . , CN2) are linked to the same domain identifier (Domain_ID);

wherein the authorization certificate includes the domain identifier (Domain_ID) in a holder field of the authorization certificate, and

wherein the authorization certificate comprises rights data specifying rules, rights and conditions pertaining to access to certain content items for the at least one person in the domain or for every user in the domain and therefore creates or defines part of the domain.

22. A non-transitory computer readable media encoded with control instructions to control an Authorized Domain (AD) to operate a method comprising:

obtaining a domain identifier (Domain_ID) uniquely identifying the Authorized Domain (AD),

binding an identification of at least one person (P1, P2, . . . , PN1) to the domain identifier (Domain_ID) comprising obtaining or generating a domain users list (DUC) comprising the domain identifier and a unique identifier,

binding an identification of at least one device (D1, D2, . . . , DM) to the domain identifier (Domain_ID), and

binding the identification of at least one content item (C1, C2, . . . , CN2) to the Authorized Domain (AD) given by the domain identifier (Domain_ID),

thereby obtaining a number of devices (D1, D2, . . . , DM) and a number of persons (P1, P2, . . . , PN1) that are authorized to access content items (C1, C2, . . . , CN2) of said Authorized Domain (AD),

controlling access to the at least one content item (C1, C2, . . . , CN2) depending on an authorization certificate, by verifying that the identification of the at least one content item (C1, C2, . . . , CN2) and the identification of the at least one person (P1, P2, . . . , PN1) are linked to the same domain identifier (Domain_ID) or by verifying that the identification of the at least one device (D1, D2, . . . , DM) and the identification of the at least one content item (C1, C2, . . . , CN2) are linked to the same domain identifier (Domain_ID);

wherein the authorization certificate includes the domain identifier (Domain_ID) in a holder field of the authorization certificate, and

wherein the authorization certificate comprises rights data specifying rules, rights and conditions pertaining to access to certain content items for the at least one person in the domain or for every user in the domain and therefore creates or defines part of the Authorized Domain.